Apparatus for forming artificial stone.



A. A. PAULY..

APPARATUS FOR FORMING ARTIFICIAL STONE.

APPLICATION FILED JULY 1, 190B.

Patenteii July 19, 1910.

5 BHEETBSHEET 1.

, INVENTOR A. A. PAULY, ZAPPARATUS FOR FORMING ARTIFICIAL STONE,

- APPLICATION 11.31) JULY 1, 1908.

965,002. I Patented July 19, 1910.

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A. A. PAULY. APPARATUS FOR FORMING ARTIFICIAL STONE- .7

' APPLICATION FILED JULY 1,.1908. 965,302 Patented July 19, 19h

5 SHEETS-SHEET 3.

li'mnmmnm Ill. IIIHHHHHIHIHHH INVENTOR A. A. PAULY. APPARATUS FORFORMING ARTIFICIAL STONE.-

APPLIOATION FILED JULY 1, 1908.

Patented July 19, 1910.

5 flHEETS-SHEBT 4.

WITNEE INVENTOR A. A. PAULY. APPARATUS FOR FORMING ARTIFICIAL STONEAPPLICATION FILED JULY 1, 190B.

Patented July 19,1910.

58HEETS-SHEET 5.

WITNEEEEEZ' ATTORNEY UNITED STATES PATENT OFFIQE.

ALBERT A. PAULY, 0F YOUNGSTOWN, OHIO, ASSIGNOR TO ,THE CONCRETE STONEAND SAND COMPANY, OF YOUNGSTOWN, OHIO, A CORPORATION OF OHIO.

AFPARATUS FOR FORMING ARTIFICIAL STONE.

To all whom it may concern:

Be it known that I, ALBERT A. PAULY, a citizen of the United States,residing at Youngstown, in the county of Mahoning' \11Cl State of Ohio,haveinvented or d1scov- 'ered new and useful Improvements in Apparatusfor Forming Artificial Stone, of which the following is a specification.

My invention relates to apparatus for molding sewer pipe, hollow tile,building blocks, and the like from Portland cement or its equivalent, incombination with ashes, sand, or other suitable material.

It is the princi al object of the present invention to provide apparatuswhereby artificial stone articles made from the above named materialsmav become quickly set or hardened in the mo ds so that they can beremoved therefrom in a few minutes. \Vhen the said articles are made inthe usual way without the aid of heat, they must be left in the moldsfor a day or two in order that they may become sufliciently hardened topermit their removal.-

The principal feature of my invention resides in the peculiarconstruction of the molds whereby tile or hollow blocks may be ieatedboth at their outer surfaces and at the surfaces in contact with thecores.

My invention also resides in novel means for stripping the moldedobjects from their molds and in the peculiar manner by which I ap )lythe heating medium or media to the molds.

Other objects will appear hereinafter.

Referring to the drawings, which accompany this specification, Figure 1is partly' a side elevation and partly a vertical section showing myinvention adapted for the manufacture of sewer pipe; Fig. 2, anelevation of the righthand end of Fig. 1; Fig. 3, a verticalcross-section through the center of one of the molds of Fig. 1, showinga sewer pipe stripped from the mold; Fig. 4:, a plan of Fig. 1; Fig. 5,partly a side elevation and partly a vertical longitudinal sectionshowing my invention adapted for the manufacture of hollow tile withpartitions; Fig. 6, a vertical section on the line (3-6 of Fig. Fig. 7,a plan View of the left-hand portion .of Fig. 5; Fig. 8, afrag mentary vew showing in perspective a portion of/ the ejecting mechanism adaptedto.

the form of molds shown in Figs. 1 to 4:; Fig. 9,21 section on the line99 of Fig. 5,

Specification of Letters Patent. Patented July 19, 19 9 Applicationfiled July 1, 190's.

Serial No. 441,289.

vide the two end standards or. supports :1,

on which the molds are supported. I have shown a single mold body 2provided with four vertical dies or mold cavities 3 arranged in a line.The ends of the body:2

are supported on the standards 1. The outer wall of the mold body 2 ismade hollow so as to form a passage for a heating fluid, as steam orwater or both. The spaces between the dies 3 are made hollow also. Thepassage 4: in the outer wall of the body 2 preferably extends entirelyaround the same and the hollows or passages 5 between the dies, 3 areconnected at their, ends to the passage 4 so as to form a water or steamjacketed structure surrounding the d1es 3. 6 is a standards 1 and 7, 7are branch pipes connected to the pipe 6 and leading up through the endsof the mold body 2 into the passage l. The branch overflow pipes 7extend to a point near or just below. the expanded portion 8 of the die3, in which the bell of a sewer pipe is formed. The pipe 6 has connectedthereto branch pipes 9, 'one for each die 3. The upper ends of the pipes9 have threaded thereon the plugs 10, which are screwed into the bottomof a hollow cylindrical core 11 standing in the -die 3. The pipes 9support the cores 11, but it is clear that other means may be providedto support them. The upper ends of the cores have thereon the rings 12seated in the expanded or bell-portion S of the dies 3. The spaceoccupied by a ring 12 receives the plain end of an adjoining sewer pipewhen two sewer pipes are joined for use. It is seen that the cement isthicker for a short'distance below each ring owing to the upwardlyflaring or off-set construction of -the-die at this place. IVithin thepipe 6 is the steam pipe 13,- to which is connected the branch pipes 14(only one shown) extending up within the pipes 7, the pipes 14'extending a short distance above the upper ends of the pipes 7 in orderthat steam may be admitted to the passage pipe supported on the lowerends of the j too 4;, above the upper surface of the water 15- sewerpipe below the bell is heated by the water While the bell itselr' isheated by the steam, which is hotter than the'water, thus causing thethicker bell portion below the ring to harden or set as soon as thethinner portions of the pipe. When the water of condensation from thesteam rises above th. pipes 7, it will flow down the same and thencethrough the pipe 6. 16 is a crosshead guided for vertical movement inthe slots 17 in the stz'tndards 1. The upper portion of the standardssup ort a pair of shafts l8 and 19 parallel wit the cross-head 16, thetwo shafts being connected by the gear wheels 20 and. 21. These shaftshave connected to them the chains 22 which have their lower endsconnected to the eyes 23 carried by the cross-head 1G. The crossheadsupports beneath each die a number of ejectonhars 24: which extend upinto the same between the dies 3 and the cores 11. Tlie upper ends ofthe ejector-bars 2r support the rings or pallets 25 which form thebottoms of the molds. The shaft 19 has its end opposite the gear wheel21 provided with the spur gear 26 with which the driving pinion 2'?gears. The pinion 27 is sup ported by the shaft 28, to which a handle orother drivin device may be attached. il l'ien the mo ded articles havebecome suihciently hardened or set, the parts being as shown in Fig. 1,power is applied to the shaft 28 which obviously winds the chains 22 onthe shafts 18, causing the ascent of the cross-head l6 and the ejectorbars 24}. Fig. shows the position of all the parts when the molded pipehas been fully ejected. The interior of the cores is heated by thebranch pipes 29 which are connected to the pipe 13 and extend in throughthe pipes 9 nearly to the top of t is cores. I do not restrict myself toany particular location for the ends of the pipes 29, but I prefer toplace them opposite the bell portions of: the dies where the moldedmaterial is thickest, in order to hasten the setting of the materialthere. The water condensed from the stean'i runs down through the pipes9 into the waste pipe 6.

Referring now to Figs. 5, 6, 7, and 9, l have designated all the partsthereof corresponding to Figs. 1, 2, 3, and 8 by the same referencenumerals with exponent lctters. As shown most clearly in Fig. 7, lpreferably make the mold body 2 in sections. The sides 30 of the moldbody are uollow and suliiciently long and wide to make the desirednumber of tile having the required length. The ends of the mold body arecomposed of hollow pieces 31, the hollows of the sides and endscommunicating to form the continuous passage 4:. Hollow partitions 32lie between the sides 30 and form the faces of adjacent dies 3. Thehollows 5 in the partitions communicate at aeaooa their ends with thepassage l. Steam is admitted into the steam jackets consisting of thepassages l and 5 by means of the branch Steam pipe 7 connected to thesteam supply pipe 13. The water condensation in the passages P and 5escapes through the holes 33 or in any other desired way. Steam issupplied to the interior of the cores 11 through the branch pipes 29connected to the steam supply pipe 13 and water in the cores escapesthrough the holes 33. The lower ends of the cores ll are provided withniortisos or depressions 34 to receive the projections 35 on the innerwalls of the mold body 2 below the pallets 25, the projections havingtheir upper ends tapered and terminating in the narrow surfaces 36 onwhich the pallets rest. In case any cement escapes past the pallets, itwill flow down the inclines on the projections as and 5 not lodge on topof the projections as would be the case if the tops thereof werehorizontal. The mold sides 36 are provided on their inner faces with thedepressions or mortises 3'7 which receive the ends of the partitions 32and the end pieces 81 in order to prevent their movement longitudinallyof the sides. The sides 30 are held against the ends 31 and thepartitions 32 by the bolts which extend transversely through the sidesand longitudinally through the ends and partitions.

It will be seen that the apparatus for making the cylindrical articles Tin i igs. l, 2, 3, and i: is similar to that for making the rectangulararticles T in Figs. 5, 6, 7, and 9.

it will be understood that steam or Water or both may be used in themold body or the cores. The water may be heated before its introductionto the passages 01' while within the same by the action of the steam. inthe same and in the cores.

lilany modifications of my invention may be made dill'cring in thedetails and their combinations, but applicant believes his invcntionincludes more than the precise structure shown and described. and hedesires his claims to be construed accordingly.

I claim 1. The combination in a cement molding 11% apparatus of aplurality of outer die membars, a core member for each outer member,pallets between the said outer and core members, upwardly taperingsupports for the pallets, a cross-l1cud, and means carried by 12 thecross-head for strippin the articles simultaneously from the mo dingapparatus.

2. The combination in a cement molding apparatus of a plurality of outerdie members, a core member for each outer member, 1 pallets between thesaid outer and core memhere, one of the said members having lugs seatedin depressions in the other member to prevent the relative movement ofsaid mom bore and forming supports for the pallets, a

cross-head, and means. extending through said supports and, carried bythe cross-head for stripping the articles simultaneously from themolding apparatus.- ,3 3. The combination in a cement molding iapparatus of a plurality of outer die memhers, a. core member foreachouter member, pallets between the said outer and core members, one-0fthe said members havin lugs seated in depressions in the other mem er toprevent the relative movement of said meme s, said lugs srving also tosupport the ,s; d pallets,a -cr'ossdzeud, and means carried by thecross-head for stripping the articles sis multaneously fipm the moldingapparatus.

W. T. GIBSON, BEULAH NIxoN.

